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// 
// Permission is hereby granted, free of charge, to any person obtaining a copy of this
// software and associated documentation files (the "Software"), to deal in the Software
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// to whom the Software is furnished to do so, subject to the following conditions:
// 
// The above copyright notice and this permission notice shall be included in all copies or
// substantial portions of the Software.
// 
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
// INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
// PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE
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// DEALINGS IN THE SOFTWARE.

using System;
using System.Collections.Generic;
using ICSharpCode.NRefactory.Semantics;

namespace ICSharpCode.NRefactory.TypeSystem.Implementation
{
	public class DefaultResolvedField : AbstractResolvedMember, IField
	{
		volatile ResolveResult constantValue;
		
		public DefaultResolvedField(IUnresolvedField unresolved, ITypeResolveContext parentContext)
			: base(unresolved, parentContext)
		{
		}
		
		public bool IsReadOnly {
			get { return ((IUnresolvedField)unresolved).IsReadOnly; }
		}
		
		public bool IsVolatile {
			get { return ((IUnresolvedField)unresolved).IsVolatile; }
		}
		
		IType IVariable.Type {
			get { return this.ReturnType; }
		}
		
		public bool IsConst {
			get { return ((IUnresolvedField)unresolved).IsConst; }
		}
		
		public object ConstantValue {
			get {
				ResolveResult rr = this.constantValue;
				if (rr == null) {
					IConstantValue unresolvedCV = ((IUnresolvedField)unresolved).ConstantValue;
					if (unresolvedCV != null)
						rr = unresolvedCV.Resolve(context);
					else
						rr = ErrorResolveResult.UnknownError;
					this.constantValue = rr;
				}
				return rr.ConstantValue;
			}
		}
	}
}
